Description of the outer core of the earth

Why do atoms form molecules and compounds?

For the preparation of Bao2, we first prepare Bacl2 by this reaction [BaCO3+HCL=Bacl2++co2+h2o] after product the (Bacl2) then we reacion the Bacl2 with H2O2 to product the BaO2 why we do not use the Bacl2 when we have in lab, we preparea fresh

If you have 8.29 moles of O2 how many moles of H2O can be produced?

Write the atomic cores for potassium and chloride ions

When does radioactive decay occur? question 4 options: when neutrons accumulate in the nucleus when the nucleus decays when an atom loses electrons when an atom gains electrons?

What fraction of carbon 14 remains in an animal frozen in a glacier 18000 years ago?

How do you convert the number of molecules of a substance to the number of moles? a. add Avogardo's number b. subtract Avogardo's number c. multiply Avogardo's number d. devide Avogardo's number

Give 3-5 pieces of evidence to support why cloning is bad.

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of oxygen and 1 g of nitrogen.

The modern periodic table reflects many improvements to Mendeleev's original table. If Mendeleev's table was incorrect, why is it still studied in chemistry classrooms today?